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- 2 shwrs-sheet 1. l H. WH-ITELEY 8v J. MALLEN.

OIL FURNAGE.

No. 538,854. I Patented May 7, 1895.

[VITA/8656" H. WHITBLEY an J. MALLBN.

OIL PURNAGE.

No. 538,854. Patented May '7, 1895.

NVEYTOHS wrrrvE-S'SESI l gg w 92S/ L i Ernten.

HENRY WHITELEY, OF PHILADELPHIA, PENNSYLVANIA, AND JAMES MALLEN, OFNORTH EAST, MARYLAND,

OIL-FURNACE.

SPECIFICATION forming part of Letters Patent No. 538,854, dated May 7,1895. Application filed December 1S, 1894- Serial'Nio. 532,145. (Nomodel.)

To all whom t may concern:

Beit known that we, HENRY WHITELEY, residing in Philadelphia, county ofPhiladelphia, State of Pennsylvania, and JAMES MAL- LEN, residing inNorth East, iny the county of Cecil, State of Maryland, citizens of the'United States, have invented a certain new and useful Improvement inOil-Furnaces, of which the following specification is a true and exactdescription, reference being had to the accompanying drawings, whichform apart thereof.

Our invention relates to furnaces, andparticularly tov suchfurnaces asare employed to heat metal preparatory to subjecting it to forgingprocesses.

The main object of our invention is to provide a furnace wherein aportion of the products of combustion Vmay conveniently be employed inone chamber to heat billets of metal and then be employed with vtheremainder of the hot gases to heat sheets or other forms of metal in asecond chamber. Another object is to provide a floor on which sheets ofmetal can be supported in such a manner that they will be fullysubjected to the action of the heated gases. y

To effect these ends our invention consists, first, in providing afurnace with certain chambers and passages for the heated gases, as willbe more fully pointed out in the description and claims.

It further consists in providing pieces which support tiles or blocks solaid that spaces will be left between them, and in supporting on saidpiers, ridges, preferably consisting of scarfed bricks, on which thesheets of metal can be laid so that the heated gases can have free.passage around them.

Other novel features will be pointed out in the claims which areappended to and form a part of this specification.

Referring now to the accompanying drawings, which illustrate a furnaceconstructed according to our invention, Figure l is a sectionalelevation of a furnace embodying our novel constructions and adapted tobe heated by oil or gas burners. Fig. 2 is a plan view shown in sectionon the line 2 2 of Fig. 1; and Figs. 3, 4, and 5 are sections taken,respectively, on the lines 3 3, 4 4, and 5 5 of Fig. 1.

A is a furnace which is divided into a number of sections A A2 A3 bymeans of partitionsjD D2.

A is a heating chamber which is specially adaptedv for sheets of metal,and is provided with a oor C on which the sheets are supported. Anysuitably constructed floorcan be employed in this chamber, and unless itis particularly mentioned we do not wish the claims to be limited to theparticular door shown. We prefer, however, to employ the iioor shownwhich is built up as follows: Piers ce are built lengthwise of saidchamber. On these piers are laid tiles or blocks e e in such a mannerthat spaces e2 e2 will be left between them and serve as .passages fromthe iues c. c"formed by the piers and the covering tiles to the spaceabove the floor. The ends ofthe tiles which cover one flue do not,however, abut against the corresponding ends of the tiles covering theadjacent flues, but a space as c4 is left between them. In these spacesare arranged ridges e3 which are supported on the piers and which arepreferably composed ot' a series of bricks as shown,it being noted thatthe bricks are firmly supported on the piers and are held in position bythe adjacent'ends ofthe tiles e'.

In order that the sheets of metal which are to be heated in the chamberA maybe surrounded toas great extent as possible by the heated gases weprefer to make the supporting ridges with a narrow top. As shown thebricks are scarfed at e4.

E is a door conveniently placed in the end wall D of the furnace and His an outlet flue situated above the level of the floor C and leading toa stack or outtake pipe H.

The heating gases are admitted to the chamber not only for the spacebeneath the Hoor but also through a passage f formed in the partitionDand opening nearorjust above the level of the floor as shown. Thispassage f leads from near the bottom of the chamber a2 which chamberconstitutes the upper part of the section A2 of the furnace, which isdivided into the chambers a2 c2 by the partition C2. This partitionforms the floor of the chamber a2 and serves to support billets of metalwhich are placed in the chamber d2 to be heated. To support the floor C2the piers e. e may be extended back as far as the partition D2 as shown.A passage f3 is formed 1n the partition D2 preferably near its top asshown, for theentrance of hot gases, and it will be noticed that byarranging the inlet passage f2 near the top of the chamber a3 and theoulet passage f near its base that the hot gases will flow downwardthrough the chamber impinging directly on the billets placed therein.

E is a door arranged in the side wallof the furnace, by which access canbe had to the chamber.

Any suitable furnace can be employed to furnish the necessary heat. XVeprefer, however, to employ gas or oil burners B B which may be arrangedin front of or project through openings as d d iu the front wall D3 ofthe furnace. The section A3 into which the burners project isconveniently divided into two chambers a3 and c3 by a partition C3, theupper chambers a3 being connected with the chamber a2 by the passage f3and the lower chamber c3 being connected with the space beneath the doorC by means of the passage d d are airfiinlet openings in the WallD3. Ifdesired a passagef3 can be provided in the iioor C2 so that some of theheated gases from the lower chamber c2 can flow into the lower part ofthe chamber a and assist in heating the billets of metal therein.

In operation the billets of metal are introduced into the chamber a3through the door E and are subjected to the action of a part of theheated gases escaping from the section A3, which gases however, from`the arrangement of the chamber impingedirectly on the metal therein.When the billets of metal are properly heated they are of course removedand replaced by others.

The chamber A is especially adapted forv the heating of metal sheetswhich are introduced through the door E, and are subjected to the actionof the heated gases, which not only enter through the opening f and flowalong beneath the sheets but which also rise through the openings e3 e3in the floor.

Having now described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. The combination in a furnace of a chainber a3 an inlet opening f2 forheated gases near the top of said chamber, a heating chamber A having aHoor C provided with passages through it, and on which floor metal to beheated is adapted to be supported, a passagef leading from near thebottom of the chamber a3 into the chamber A at or just above the levelof the floor C and dues or passages for conducting heated gases into thespace beneath the perforated door.

2. The combination in a furnace of a chamber c,2 an inlet passageleading thereto for heated gases, an outlet f opening therefrom into achamber A', said chamber A having a floor C consisting of piers e e andtiles e e laid thereon so as to leave passages e3 e2 between them, andso as to form lines c c and a passage for heated gases opening into thefines c c.

3. The combination in a furnace of a combustion or mixing section A3, apreheating chamber a2 and a heating chamber A', a passage f2 leadingfrom the combustion or mixing chamber A3 to the chamber a3, a passageleading from the chamber a2 to the heating chamber A whereby a portionof the products of combustion pass through the preheating chamber, apassageffor conducting heated gases from the chamber A3 into the chamberA and an outlet tine Il leading from said chamber.

4. The combination in a furnace of a combustion or mixing section A3,heating chambers d3 and A', a floor C in the chamber A havingr passagese3 e3 formed in it, a passage f2 leading from the section A3 into thetop of the chamber CL3 a passagef leading from near the bottom of saidchamber a3 into the chamber A and opening thereunto just above the levelof the floor C', a passage j' leading from the section A3 and adapted toconduct gases therefrom into the space beneath the floor C whereby aportion of the heated gases will be conducted through the chamber a3 andimpinge on billets of metal placed therein, and an outlet iiu'e Hsituated above the level of the floor C.

5. In a furnace a combustion section A3 divided into upper and lowerchambers a3 c3, a chamber 0,3, a passage f2 leading from the section a3of the chamber A3 into the chamber a3, a heating chamber A having afloor C therein, a passage f leading from the chamber a2 into thechamber A above the level of the floor, a passage leading from the lowerchamber or section o3 to the space beneath the floor C and an outletflue H leading from the chamber A above the flue C.

6. In a furnace the combination of the section A3 divided into chambersa3 c3 by the partition O3, a chamber a2 connected to the seetion a3 by apassage f2 and having a iioor C2 a heating section or chamber A having afloor C', a passage f opening from the chamber d2 into the chamber Ajust above the level of the floor C', a passage `leading from thesection c3 to the space below the door C', an openingf3 in the door C2through which heated gases can pass into the chamber a3 from the spaceinto which the passagefopens, and an outlet iiue H leading from thechamber A above the level of the Hoor C.

7. In a furnace the combination of a mixing or combustion section Adivided into upper and lower chambers a3 c3 openings cl d in the Wallsof said chambers, burners B B for gas or oil arranged in front of orprojecting through said openings, heating chambers a2 A piers e eextending longitudinally in said chamber A', tiles e e' laid thereon, sothat passages e2 e3 will be left between them and so that iues c c willbe formed, a passage f 2 leadinginto the chamber a3, a passage f lead-ICO IIO

e e a series of tiles laid thereon so as to leave passages e2 e2 betweenthem and ridges e3 es supported on the piers e and projecting up betweenthe tiles to prevent the metal from lying on the tiles.

9. In a furnaceafloor for supporting metal to be heated, consisting of anumber of piers e @,aseries of tiles laid thereon so as toleave passagese2 e2 between them, and ridges e3 e5, each consisting of a row ofbricks, supported on the piers e and projecting up between the tiles toprevent the metal from lying on the tiles.

10. In a furnace a floor for supporting metal to be heated consisting ofa number of piers e e,a series of tiles laid thereon, as described,andso as to leave passages e2 @between them and openings c4 and ridgese3 e3, each ridge consisting of a row of bricks set in the openings 04and supported on the piers whereby the bricks forming the ridge will beheld in place by the tiles as specified.

vl1. In a furnacea floor for supporting metal to be heated consisting ofa number of piers e e, a series of tiles laid thereon as described andso as to leave passages e262 between them and openings c4 and ridges e3e3 each ridge consisting of a row of scarfed bricks set in the openingsc4 and supported on the piers whereby the bricks forming the ridge willbe held in place by the tiles as specitled.`

HENRY WHITELEY. JAMES MALLEN. Witnesses:

J. B. JARDELLA, G. H. RoBINs.

